Re^3: AI Overlords

I was surprised that it would not bail out at the full-stops.

Is there any way to see how perl attempts to parse a script that eventually turns out not to be valid (B::Deparse will not help then I suppose...)

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Re^4: AI Overlords by hippo (Archbishop) on Mar 10, 2016 at 23:21 UTC
I was surprised that it would not bail out at the full-stops. The full stop is the concatenation operator. This is valid perl: `$ perl -ce 'a . b;' -e syntax OK` [download] If your only punctuation is the full stop and the comma you can get away with most things. Just avoid reserved words near punctuation. `$ perl -ce 'Twas brillig, and the slithy toves Did gyre and gimble in +the wabe; All mimsy were the borogoves, And the mome raths outgrabe' -e syntax OK` [download] Of course, you couldn't end that with a full stop because it's a binary operator. HTH	[reply] [d/l] [select]

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Re^4: AI Overlords
by hippo (Archbishop) on Mar 10, 2016 at 23:21 UTC

I was surprised that it would not bail out at the full-stops.

The full stop is the concatenation operator. This is valid perl:

$ perl -ce 'a . b;'
-e syntax OK
[download]

If your only punctuation is the full stop and the comma you can get away with most things. Just avoid reserved words near punctuation.

$ perl -ce 'Twas brillig, and the slithy toves Did gyre and gimble in 
+the wabe; All mimsy were the borogoves, And the mome raths outgrabe'
-e syntax OK
[download]

Of course, you couldn't end that with a full stop because it's a binary operator. HTH

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